I was driving to school one day and my radio cut off for no reason.(i also cant adjust my power mirrors and my dome lights dont work as well as my bed lights). I thought it was a blown fuse, but all the fuses were fine. I did, however, notice a wire that was unconnected.

Here is the wire


Here is where it plugs into


No idea what this is


This happened shortly after i let my parents use my truck.